Modified light-cured resin composition and preparation method thereof
A technology of light-curing resin and composition, applied in the field of light-curing materials, can solve the problems of poor dimensional stability, low use temperature, large volume shrinkage, etc., and achieve the effects of good aging resistance, reduced shrinkage, and reduced dispersion problems
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[0029] Correspondingly, the present invention also provides a preparation method of a modified photocurable resin composition, comprising the following steps: adding 1-5 parts by weight of semi-cage POSS resin to 2-10 parts by weight of the first epoxy resin, stirring Obtain POSS epoxy resin solution afterward; With 20-60 weight part acrylic resin, 20-68 weight part second epoxy resin, 20-40 weight part reactive diluent, 0.1-8 weight part free radical initiator, 0.1-8 Parts by weight of cationic initiator, 5-15 parts by weight of polyol, 0.1-0.5 parts by weight of leveling agent, 0.1-0.5 parts by weight of defoamer, 0.1-1 part by weight of wetting and dispersing agent, the POSS epoxy resin solution, 1-5 parts by weight of nano silicon dioxide and pigment are mixed, stirred at high speed in a mixer, and after uniform dispersion, put into an ultrasonic cleaning machine for ultrasonic vibration to obtain a modified photocurable resin composition.
[0030] Wherein, the first epoxy...
Embodiment 1
[0036] A semi-cage POSS modified photocurable resin is composed of the following weight component raw materials: 5 parts by weight of CN104 (Sartomer), 5 parts by weight of EB639 (Cytec), 3,4-epoxycyclohexylcarboxylic acid-3' , 52 parts by weight of 4'-epoxycyclohexyl methyl ester, 16 parts by weight of reactive diluent 1,6-ethylene glycol diacrylate, 2 parts by weight of free radical initiator 1173, triarylsulfonium hexafluoroantimonate ( cationic initiator) 4 parts by weight, polycaprolactone glycol 10 parts by weight, leveling agent 0.3 parts by weight, defoamer 0.3 parts by weight, wetting and dispersing agent 0.3 parts by weight, semi-cage POSS resin 2 parts by weight, 3 parts by weight of nano-silica, and 0.1 part by weight of titanium dioxide.
[0037] The preparation technology of described photocurable resin comprises the following steps:
[0038] 1. Weigh 2 parts by weight of semi-cage POSS resin, add it to 4 parts by weight of 3,4-epoxycyclohexylcarboxylate-3',4'-e...
Embodiment 2
[0041] A semi-cage POSS modified photocurable resin is composed of the following weight component raw materials: 5 parts by weight of CN104 (Sartomer), 5 parts by weight of EB639 (Cytec), 3,4-epoxycyclohexylcarboxylic acid-3' , 50 parts by weight of 4'-epoxycyclohexyl methyl ester, 16 parts by weight of reactive diluent 1,6-ethylene glycol diacrylate, 2 parts by weight of free radical initiator 1173, triarylsulfonium hexafluoroantimonate ( Cationic initiator) 4 parts by weight, polycaprolactone glycol 10 parts by weight, leveling agent 0.3 parts by weight, defoamer 0.3 parts by weight, wetting and dispersing agent 0.3 parts by weight, semi-cage POSS (self-made) 4 parts by weight parts, 3 parts by weight of nano silicon dioxide, and 0.1 parts by weight of titanium dioxide.
[0042] The preparation technology of described photocurable resin comprises the following steps:
[0043] 1. Weigh 4 parts by weight of semi-cage POSS resin, add it to 8 parts by weight of epoxy resin 3,4-...
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